Base | Representation |
---|---|
bin | 1001100111010101… |
… | …1111110100010101 |
3 | 20122212111020100111 |
4 | 2121311133310111 |
5 | 20241210004010 |
6 | 1104034243021 |
7 | 120646416412 |
oct | 23165376425 |
9 | 6585436314 |
10 | 2580938005 |
11 | 1104965a18 |
12 | 600426471 |
13 | 32192a769 |
14 | 1a6abd109 |
15 | 1018b758a |
hex | 99d5fd15 |
2580938005 has 4 divisors (see below), whose sum is σ = 3097125612. Its totient is φ = 2064750400.
The previous prime is 2580937993. The next prime is 2580938029. The reversal of 2580938005 is 5008390852.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in 2 ways, for example, as 1838865924 + 742072081 = 42882^2 + 27241^2 .
It is not a de Polignac number, because 2580938005 - 25 = 2580937973 is a prime.
It is a super-2 number, since 2×25809380052 = 13322481971306760050, which contains 22 as substring.
It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
It is a Duffinian number.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 258093796 + ... + 258093805.
It is an arithmetic number, because the mean of its divisors is an integer number (774281403).
Almost surely, 22580938005 is an apocalyptic number.
It is an amenable number.
2580938005 is a deficient number, since it is larger than the sum of its proper divisors (516187607).
2580938005 is an equidigital number, since it uses as much as digits as its factorization.
2580938005 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 516187606.
The product of its (nonzero) digits is 86400, while the sum is 40.
The square root of 2580938005 is about 50802.9330354065. The cubic root of 2580938005 is about 1371.7001651443.
The spelling of 2580938005 in words is "two billion, five hundred eighty million, nine hundred thirty-eight thousand, five".
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